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math.NA2026
The Refined Joint Bidiagonalization Method and an Implicitly Restarted Algorithm for Large GSVD Computations
Kaixiao Fang, Zhongxiao Jia
We make a convergence analysis on the joint bidiagonalization (JBD) method that computes several extreme generalized singular value decomposition (GSVD) components of a regular mat…
math.NA2026
A Numerical Analysis of Sketched Linear Squares Problems and Stopping Criteria for Iterative Solvers
Zhongxiao Jia, Xinyuan Wan
Randomized subspace embedding methods have had a great impact on the solution of a linear least squares (LS) problem by reducing its row dimension, leading to a randomized or sketc…